نتایج جستجو برای: c87
تعداد نتایج: 35 فیلتر نتایج به سال:
Econometric modelling using automatic algorithms such as PcGets (Hendry and Krolzig, 2001) and Autometrics (Doornik, 2007) has recently become popular. This paper considers automatic model selection when there is non-linearity inherent in the process. The strategy uses a new test for nonlinearity, specifies the general model using polynomials if linearity is rejected, and undertakes a general-t...
DCM (Discrete Choice Models) is a package, written in Ox, for estimating a class of discrete choice models. DCM represents an important development for both the OxMetric and, more generally, microeconometric computing environment in making available a broad range of discrete choice models, including standard binary response models, with notable extensions including conditional mixed logit, mixe...
Using recent precise hadronic -decay data on the V A spectral function, and general properties of QCD such as analyticity, the operator product expansion, and chiral perturbation theory, we get accurate values for the QCD chiral order parameters L10ðM Þ and C87ðM Þ. These two low-energy constants appear at order p and p, respectively, in the chiral perturbation theory expansion of the V A corre...
قاچاق کالا بهعنوان تهدیدی در حوزههای مختلفِ سیاسی، فرهنگی، نظامی، اجتماعی و بهویژه اقتصادی، به یکی از موضوعات بحثبرانگیز سالهای اخیر در سرتاسر جهان تبدیل شده است، درحالیکه بیشتر مطالعات اقتصادی به جنبههای نظری قاچاق و تجزیه و تحلیل اثرات رفاهی آن پرداختهاند، تنها تعداد بسیار محدودی از مطالعات به صورت تجربی با این موضوع پیچیده برخورد کردهاند. مطالعهی حاضر به بررسی اثر قاچاق کالا و اثر ...
The Klebsiella pneumoniae type 3 fimbriae are mainly composed of MrkA pilins that assemble into a helixlike filament. This study determined the biomechanical properties of the fimbriae and analyzed 11 site-directed MrkA mutants to identify domains that are critical for the properties. Escherichia coli strains expressing type 3 fimbriae with an Ala substitution at either F34, V45, C87, G189, T19...
Streptococcal pyrogenic exotoxin A (SPE A) is secreted by some strains of Streptococcus pyogenes and is strongly associated with streptococcal toxic shock syndrome (STSS), a severe and often fatal illness. SPE A possesses a number of biological properties, some of which are shared with a group of exotoxins of streptococcal and staphylococcal origins, the pyrogenic toxin superantigens (PTSAgs). ...
this study examines technical efficiency in iran's banking system using unbalanced panel data for 17 state and private banks during the 1997-2009 period. therefore, technical efficiency of banks was measured through estimating a translog cost function in the form of a panel sfa error compound model. then, the effect of underlying factors including both individual and structural (ownership/...
DCM (Discrete Choice Models) is a package for estimating a class of discrete choice models. DCM is a class written in Ox, that implements a wide range of discrete choice models including standard binary response models, with notable extensions including conditional mixed logit, mixed probit, multinomial probit, and random coefficient ordered choice models. The current version can handle both cr...
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